Custom Tool Length for 4-axis printing

I’ve been working on a model for 4-axis printing in Fusion360, but realized it’s 4 axis tool mapping isn’t included in the hobbyist version - moving over to Snapmaker Luban I imported my stl file, but when I went to modify the CNC tool for the longer bit I need for this project, I noticed there wasn’t an option to modify bit length(or at least not an obvious one).

Wondering if anyone has a workaround to import a tool with custom length into Luban or if I’ll have to suck it up and get a month of Fusion pro to finish this project.